<?php
class My_Controller extends CI_Controller
{
        protected $data;
        public function __construct()
        {
            parent::__construct();
              // các model chung load ơ đây
              $this->load->model('m_item');
              $this->load->model('m_account');
              $this->load->model('m_invoice');
               $this->load->model('m_payment');
              
        }
}
?>